7 Replies Latest reply: Dec 10, 2012 12:23 PM by BDAqua
Pudgy Squirrel Level 1 Level 1 (10 points)

I've woken up countless nights to have my iMac stuck on a white screen, unresponsive multiple nights now. It won't respond and the only way to fix the issue is to do a hard restart. I have no idea what is going on with it. My iMac will wake out of sleep mode to get stuck on this white screen. There are no icons or any inidcators on it. It boots back up fine and just informs me that I had to restart because of an issue. It happened every two weeks before but now is as frequent as every other night.


Anyone have any solutions for me? I am desperate! Thank you!


iMac (mid 2011)

Version 10.8.2

3.4 GHz Intel Core i7

16 GB DDR3

AMD Radeon HD 2048 MB

More than enough HD space left

iMac (27-inch Mid 2011), OS X Mountain Lion (10.8.2)
  • 1. Re: White Screen of Death
    BDAqua Level 10 Level 10 (116,475 points)



    Open console in Applications>Utilities, check the system log for the date/time of the last problem  & the Startup right after that for clues.

  • 2. Re: White Screen of Death
    Pudgy Squirrel Level 1 Level 1 (10 points)

    I'm not too familier with the Console app. Here are the last messages before I had to perform the hard restart around $:45. Screen Shot 2012-12-02 at 6.40.03 PM.png

  • 3. Re: White Screen of Death
    BDAqua Level 10 Level 10 (116,475 points)

    Copy & Paste text is far better for logs, but try disconnecting your Ethernet cable for a test.

  • 4. Re: White Screen of Death
    Pudgy Squirrel Level 1 Level 1 (10 points)

    Here is the log from the most recent panic.


    Tue Dec  4 09:24:48 2012

    panic(cpu 6 caller 0xffffff802b0b7bd5): Kernel trap at 0xffffff7fac768032, type 14=page fault, registers:

    CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x000000002da7f000, CR4: 0x00000000000606e0

    RAX: 0xffffff7fac768026, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0x0000000000000000

    RSP: 0xffffff81fc3dbeb0, RBP: 0xffffff81fc3dbec0, RSI: 0x0000000000000000, RDI: 0xffffff804dfc8800

    R8:  0x0000000000000001, R9:  0xffffff81ec1d4108, R10: 0x0000000008bf4d3f, R11: 0x00000000ffffff80

    R12: 0x0000000000007caf, R13: 0x0000000000000000, R14: 0x0000000000000000, R15: 0x0000000000000001

    RFL: 0x0000000000010286, RIP: 0xffffff7fac768032, CS:  0x0000000000000008, SS:  0x0000000000000010

    Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x6


    Backtrace (CPU 6), Frame : Return Address

    0xffffff81fc3dbb50 : 0xffffff802b01d626

    0xffffff81fc3dbbc0 : 0xffffff802b0b7bd5

    0xffffff81fc3dbd90 : 0xffffff802b0ce4ed

    0xffffff81fc3dbdb0 : 0xffffff7fac768032

    0xffffff81fc3dbec0 : 0xffffff7facecfcea

    0xffffff81fc3dbef0 : 0xffffff802b4472a8

    0xffffff81fc3dbf30 : 0xffffff802b445daa

    0xffffff81fc3dbf80 : 0xffffff802b445ed9

    0xffffff81fc3dbfb0 : 0xffffff802b0b26b7

          Kernel Extensions in backtrace:

             com.apple.AMDRadeonAccelerator(1.0)[D89E4100-9C89-3C99-B34B-F7790E1A0B8B]@0xfff fff7facec9000->0xffffff7fad296fff

                dependency: com.apple.iokit.IOAcceleratorFamily(19.0.26)[7DC411F1-A646-3A4A-B160-A1492F5EC0 ED]@0xffffff7face77000

                dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7fab68d000

                dependency: com.apple.iokit.IONDRVSupport(2.3.5)[86DDB71C-A73A-3EBE-AC44-0BC9A38B9A44]@0xff ffff7fabc4b000

                dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7fabc08000

             com.apple.kext.AMDFramebuffer(8.0)[4CD59A3C-4442-36CB-8026-2095FE6B032A]@0xffff ff7fac760000->0xffffff7fac772fff

                dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7fabb77000

                dependency: com.apple.iokit.IOPCIFamily(2.7.2)[B1B77B26-7984-302F-BA8E-544DD3D75E73]@0xffff ff7fab68d000

                dependency: com.apple.kext.AMDSupport(8.0.0)[7B2EC6D1-101A-3928-919E-337D6724752A]@0xffffff 7fac576000

                dependency: com.apple.iokit.IOGraphicsFamily(2.3.5)[803496D0-ADAD-3ADB-B071-8A0A197DA53D]@0 xffffff7fabc08000


    BSD process name corresponding to current thread: kernel_task

    Boot args: 0x0


    Mac OS version:



    Kernel version:

    Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64

    Kernel UUID: 69A5853F-375A-3EF4-9247-478FD0247333

    Kernel slide:     0x000000002ae00000

    Kernel text base: 0xffffff802b000000

    System model name: iMac12,2 (Mac-942B59F58194171B)


    System uptime in nanoseconds: 51859098966199

    last loaded kext at 45591598708488: com.apple.driver.AppleFireWireStorage          3.1.0 (addr 0xffffff7fad40d000, size 16384)

    last unloaded kext at 45702287302798: com.apple.driver.StorageLynx          3.1.0 (addr 0xffffff7fad404000, size 8192)

    loaded kexts:

    com.paceap.kext.pacesupport.snowleopard          5.8

    com.digidesign.iokit.DigiDal          10.3.2f47

    com.apple.filesystems.smbfs          1.8

    com.apple.driver.AppleBluetoothMultitouch          75.15

    com.apple.driver.AppleHWSensor          1.9.5d0

    com.apple.filesystems.ntfs          3.10

    com.apple.driver.AudioAUUC          1.60

    com.apple.driver.AGPM          100.12.69

    com.apple.driver.AppleMikeyHIDDriver          122

    com.apple.driver.AppleUpstreamUserClient          3.5.10

    com.apple.kext.AMDFramebuffer          8.0.0

    com.apple.iokit.IOUserEthernet          1.0.0d1

    com.apple.driver.AppleHDA          2.3.1f2

    com.apple.filesystems.autofs          3.0

    com.apple.iokit.IOBluetoothSerialManager          4.0.9f33

    com.apple.AMDRadeonAccelerator          1.0.0

    com.apple.driver.AppleMikeyDriver          2.3.1f2

    com.apple.driver.AppleSMCLMU          2.0.2d0

    com.apple.Dont_Steal_Mac_OS_X          7.0.0

    com.apple.iokit.BroadcomBluetoothHCIControllerUSBTransport          4.0.9f33

    com.apple.driver.AppleUSBDisplays          353

    com.apple.driver.AppleLPC          1.6.0

    com.apple.driver.AppleBacklight          170.2.3

    com.apple.driver.AppleMCCSControl          1.0.33

    com.apple.driver.ApplePolicyControl          3.2.11

    com.apple.driver.AppleSMCPDRC          1.0.0

    com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0

    com.apple.driver.AppleIntelHD3000Graphics          8.0.0

    com.apple.driver.AppleIntelSNBGraphicsFB          8.0.0

    com.apple.driver.AppleUSBCardReader          3.1.0

    com.apple.iokit.SCSITaskUserClient          3.5.1

    com.apple.driver.AppleIRController          320.15

    com.apple.driver.Oxford_Semi          3.1.0

    com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1

    com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1

    com.apple.BootCache          34

    com.apple.driver.XsanFilter          404

    com.apple.iokit.IOAHCIBlockStorage          2.2.2

    com.apple.driver.AppleUSBHub          5.2.5

    com.apple.iokit.AppleBCM5701Ethernet          3.2.5b3

    com.apple.driver.AirPort.Atheros40          600.70.23

    com.apple.driver.AppleFWOHCI          4.9.6

    com.apple.driver.AppleAHCIPort          2.4.1

    com.apple.driver.AppleUSBEHCI          5.4.0

    com.apple.driver.AppleEFINVRAM          1.6.1

    com.apple.driver.AppleACPIButtons          1.6

    com.apple.driver.AppleRTC          1.5

    com.apple.driver.AppleHPET          1.7

    com.apple.driver.AppleSMBIOS          1.9

    com.apple.driver.AppleACPIEC          1.6

    com.apple.driver.AppleAPIC          1.6

    com.apple.driver.AppleIntelCPUPowerManagementClient          196.0.0

    com.apple.nke.applicationfirewall          4.0.39

    com.apple.security.quarantine          2

    com.apple.driver.AppleIntelCPUPowerManagement          196.0.0

    com.apple.driver.IOBluetoothHIDDriver          4.0.9f33

    com.apple.driver.AppleMultitouchDriver          235.28

    com.apple.driver.DspFuncLib          2.3.1f2

    com.apple.iokit.IOSurface          86.0.3

    com.apple.kext.triggers          1.0

    com.apple.iokit.IOSerialFamily          10.0.6

    com.apple.iokit.IOAcceleratorFamily          19.0.26

    com.apple.driver.AppleUSBAudio          2.9.0f6

    com.apple.iokit.IOAudioFamily          1.8.9fc10

    com.apple.kext.OSvKernDSPLib          1.6

    com.apple.iokit.IOBluetoothFamily          4.0.9f33

    com.apple.iokit.AppleBluetoothHCIControllerUSBTransport          4.0.9f33

    com.apple.driver.AppleThunderboltEDMSink          1.1.8

    com.apple.driver.AppleThunderboltEDMSource          1.1.8

    com.apple.driver.AppleBacklightExpert          1.0.4

    com.apple.driver.AppleSMBusController          1.0.10d0

    com.apple.kext.AMD6000Controller          8.0.0

    com.apple.kext.AMDSupport          8.0.0

    com.apple.driver.AppleGraphicsControl          3.2.11

    com.apple.driver.AppleHDAController          2.3.1f2

    com.apple.iokit.IOHDAFamily          2.3.1f2

    com.apple.driver.IOPlatformPluginLegacy          1.0.0

    com.apple.driver.IOPlatformPluginFamily          5.2.0d16

    com.apple.driver.AppleSMC          3.1.4d2

    com.apple.driver.AppleSMBusPCI          1.0.10d0

    com.apple.iokit.IONDRVSupport          2.3.5

    com.apple.iokit.IOGraphicsFamily          2.3.5

    com.apple.iokit.IOFireWireIP          2.2.5

    com.apple.driver.AppleUSBHIDKeyboard          165.5

    com.apple.driver.AppleHIDKeyboard          165.5

    com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.1

    com.apple.iokit.IOBDStorageFamily          1.7

    com.apple.iokit.IODVDStorageFamily          1.7.1

    com.apple.iokit.IOCDStorageFamily          1.7.1

    com.apple.driver.AppleThunderboltDPOutAdapter          1.8.5

    com.apple.driver.AppleThunderboltDPInAdapter          1.8.5

    com.apple.driver.AppleThunderboltDPAdapterFamily          1.8.5

    com.apple.driver.AppleThunderboltPCIUpAdapter          1.2.5

    com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.5

    com.apple.iokit.IOUSBMassStorageClass          3.5.0

    com.apple.iokit.IOAHCISerialATAPI          2.5.0

    com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.1

    com.apple.iokit.IOUSBHIDDriver          5.2.5

    com.apple.iokit.IOFireWireSerialBusProtocolTransport          2.1.1

    com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.1

    com.apple.iokit.IOFireWireSBP2          4.2.0

    com.apple.driver.AppleUSBMergeNub          5.2.5

    com.apple.driver.AppleUSBComposite          5.2.5

    com.apple.iokit.IOUSBUserClient          5.2.5

    com.apple.driver.AppleThunderboltNHI          1.6.0

    com.apple.iokit.IOThunderboltFamily          2.1.1

    com.apple.iokit.IOEthernetAVBController          1.0.2b1

    com.apple.iokit.IO80211Family          500.15

    com.apple.iokit.IONetworkingFamily          3.0

    com.apple.iokit.IOFireWireFamily          4.5.5

    com.apple.iokit.IOAHCIFamily          2.2.1

    com.apple.iokit.IOUSBFamily          5.4.0

    com.apple.iokit.IOHIDFamily          1.8.0

    com.apple.driver.AppleEFIRuntime          1.6.1

    com.apple.iokit.IOSMBusFamily          1.1

    com.apple.security.sandbox          220

    com.apple.kext.AppleMatch          1.0.0d1

    com.apple.security.TMSafetyNet          7

    com.apple.driver.DiskImages          344

    com.apple.iokit.IOStorageFamily          1.8

    com.apple.driver.AppleKeyStore          28.21

    com.apple.driver.AppleACPIPlatform          1.6

    com.apple.iokit.IOPCIFamily          2.7.2

    com.apple.iokit.IOACPIFamily          1.4

    com.apple.kec.corecrypto          1.0

    Model: iMac12,2, BootROM IM121.0047.B1F, 4 processors, Intel Core i7, 3.4 GHz, 16 GB, SMC 1.72f2

    Graphics: AMD Radeon HD 6970M, AMD Radeon HD 6970M, PCIe, 2048 MB

    Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

    Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

    Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

    Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020

    AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380:

    Bluetooth: Version 4.0.9f33 10885, 2 service, 18 devices, 1 incoming serial ports

    Network Service: Ethernet, Ethernet, en0

    Network Service: Wi-Fi, AirPort, en1

    PCI Card: Apple 57761-B0, sppci_ethernet, Thunderbolt@13,0,0

    PCI Card: pci11c1,5901, sppci_ieee1394openhci, Thunderbolt@14,0,0

    PCI Card: pci12d8,400e, sppci_usbopenhost, Thunderbolt@12,0,0

    PCI Card: pci12d8,400e, sppci_usbopenhost, Thunderbolt@12,0,1

    PCI Card: pci12d8,400f, USB Enhanced Host Controller, Thunderbolt@12,0,2

    Serial ATA Device: Hitachi HDS723020BLA642, 2 TB

    Serial ATA Device: OPTIARC DVD RW AD-5690H

    USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfa100000 / 3

    USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfa130000 / 5

    USB Device: Apple Keyboard, apple_vendor_id, 0x024f, 0xfa132000 / 9

    USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0xfa110000 / 4

    USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 6

    USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 2

    USB Device: hub_device, 0x0424  (SMSC), 0x2514, 0xfd100000 / 2

    USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 4

    USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3

    USB Device: hub_device, apple_vendor_id, 0x9127, 0x40100000 / 2

    USB Device: My Book 1110, 0x1058  (Western Digital Technologies, Inc.), 0x1110, 0x40130000 / 7

    USB Device: My Book, 0x1058  (Western Digital Technologies, Inc.), 0x1100, 0x40120000 / 6

    USB Device: FaceTime HD Camera (Display), apple_vendor_id, 0x1112, 0x40150000 / 5

    USB Device: Display Audio, apple_vendor_id, 0x1107, 0x40140000 / 4

    USB Device: Apple Thunderbolt Display, apple_vendor_id, 0x9227, 0x40170000 / 3

  • 5. Re: White Screen of Death
    BDAqua Level 10 Level 10 (116,475 points)

    Well, it all seems to be pointing at the Graphic card or graphic drivers, but it might be one of those non-apple kexts, this one seems really suspect since it mentions SL/10.6...


    com.paceap.kext.pacesupport.snowleopard      5.8


    One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...


    PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive


    Reboot, test again.


    If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.


    Check the System Preferences>Other Row, for 3rd party Pref Panes.


    Also look in these if they exist, some are invisible...








  • 6. Re: White Screen of Death
    Pudgy Squirrel Level 1 Level 1 (10 points)

    Thanks for all of your help! I'll keep you updated if it happens again!

  • 7. Re: White Screen of Death
    BDAqua Level 10 Level 10 (116,475 points)

    Your welcome, please do let us know.